dinsmore



(No Model.) 4 Sheets-Sheet 1.

R. DINSMORE.

MAGAZINE GUN WITH PNEUMATIGALLY OPERATED MAGAZINES..

No. 444,666. Paten'ted'Jan. 13, 1891.

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(No Model.) 4 Sheets- Sheet 2. -R. DLNSMORB, y f MAGAZINE GUN WITHPNEUMATIGALLY OPERA'IED MAGAZINES.. No. 444,666. Patented Jan. 13,1891.

4. qm t E W m m Z A .w G e A M M S 4, DL T A R E P H0 Y Rm ,0 S T mm .mRDL H mi TI.- W N U G E N L I M M m .G 0 A N M Patented Jan. 13,1891'.

W W www 1 L. .o J, a F 7W u ,1 w a Kw U mf w w m UNTTED STATES y PATENTOFFICE.

ROBERT DINSMORE, OF VESTON, TEST VIRGINIA, ASSIGNOR OF ONE-HALF TOADOLPH GREENSTEIN, OF SAME PLACE.

MAGAZINE-GUN WITH PNEUMATlCALLY-OPERATED MAGAZINES.

SPECIFICATION forming part of Letters Patent N o. 444,666, dated January13, 1891.

Application filed March 21, 1890. Serial No. 344,770. (No model.)

- To @ZZ whom it may concern:

Be it known that I, ROBERT DINsMoRE, a citizen of the United States,residing at Veston, in the county of Lewis and State of Test Virginia,have invented a new and useful Magazine Fire-Arm, of which the followingis a specification.

This invention has relation to improvements in magazine-guns.

1o The objects of the invention are to simplify the construction, reducethe numberof parts, facilitate their assemblage and conjointoperation,to increase the capacities of the magazines, to provide a gunwhich by one movement of its carriage will withdraw and eject an emptyshell, reload, and throw the firing mechanism into position for ring,which will obviate the necessity of the usual springs in the magazinefor feeding the cartridges to zo the barrel, and to accomplish the sameby means of pneumatic pressure operated by the movements of the plungersimultaneously with the discharge of the piece.

Various other objects and advantages of the invention will hereinafterappear, and the novel features thereof will be particularly pointed outin the claims.

Referring to the drawings, Figure 1 is a perspective of a magazine-gunconstructed 3o in accordance with my invention. Fig. 2 is a sideelevation section of the breech-section. Fig. 3 is a similar view of thesame, the carrier-block being raised and the piece ready for iring, or,in other words, thebreech-plate having been swung open and to the rearand ready for closing. Figa is a central longitudinal section, thecartridge being in the act of being inserted in the breech. Fig. 5 is asimilar view, the piece being loaded. Fig.

4o (3 is a longitudinal section of the .stock and I rear portion of thebreech-section, illustrating the rear magazine and the mechanism foradjusting the same into and out of opertive position. Fig. 7 is a sideelevation of the breech -section, illustrating the means for throwingthe front or rear magazine into and out of communication with thecarrierblock.

Fig.- S is a transverse section on the line oc w of Fig. 3. Fig. 0 is atransverse section on the 5o line y y of Fig. 4. Fig. 10 is aperspective in detail of the carriage, iiring pin or bolt, its

sleeve or air-tube, and the carrier-block bellcrank. Fig. 1l is atransverse section on the line w zo* of Fig. 6. Fig. 12 is a transversesection on the line e' a. Fig. 13 is a perspec- 55 tive in detail of thecarrier-block bell-crank. Fig. 14 is a perspective in detail of thecarrier-block. Fig. 15 is a transverse section on the line n u of Fig.2. Fig. 16 are details of the rear magazine, shifting trigger, and lock-6o ing-plate.

Like numerals of reference indicate like parts in all the figures of thedrawings.

1 represents the barrel, which is of the usual construction, having thefront and rear sights 2 and 3, respectively, and secured to the forearm,4 of the stock 5 in the usual manner.

6 represents the forward or front magazine, which is located under thebarrel 1 and se- 7o cured in position by the usual securing-rings 7, therear end of the magazine entering the fore-arm 4 and terminating flushwith the rear end or breech of the barrel 1. The upper portion of thefore-arm is not entirely occupied by the barrel, as is usual, and in thesame there is located the receiver 8. The forward end of the receiver 8is provided with an internally-threaded socket 9, into which is threadedthe reduced breech portion 10 of the 8o barrel. Below the socket 9 thereceiver is provided with a plain socket 1l, in which terminates therear or discharge end of the front magazine 6.

The receiver S directly in rear of the breech 8 5 of the gun is providedwith the carrier-block opening l2, in which is mounted for reciprccation the carrier-block 13. (See Figs. 4, 5, and 14E.) In rear of theopening 12 and in line with the bore of the breech there is lo- 9o cateda cylindricalinternally-bored air tube or sleeve 1li, the rear end ofwhich is slightly beveled, as at l5. In the rear of the sleeve orair-tube 14 the receiver is provided with a hollow chamber- 10, andparallel with the chamber and extending throughout thelength of thereceiver is a cartridgefpassage 17, the front end of the passagecommunicating with the carrier-block well12. The upper portion of thestock 5 is recessed longitudinally, as at rco 18, and in the same theretakes the rea-rextension 19 of thetail-piece 20. The tail-piece 2O isprovided with' a forwardly-prejecting tenonA 21, which enters the rearend of thereceiver 8. The tail-piece is also provided with alongitudinal bar 22, (see Fig. 4,) and mounted for reciprocation in thebore is a plungerrod 23, the front end of which enters the sleeve 14,and is provided with an air-tight head or piston 24, mounted formovement in said sleeve. In rear of the piston 24 the rod is providedwith a fixed collar 25, the front face of which is beveledto agree withthe bevel at the rear end of the sleeve 14. Coiled upon the plunger 23and between the tenon 21 and the ,collar 25 is a spring 26, which servesto throw the plunger when the sameis not otherwise influenced.

The upper side of the receiver 8 is provided with a longitudinal opening28, the opposite ends of which are undercut or beveled, as at 29, (seeFig. 3,)to receive laterally a sliding cover or breech-plate 30, whichplat-e is provided at one side with a perforated lug31, projecting intoa recess 32, in which said perforated lng is pivoted vupon a bearing-pin33, the recess being formed in a thumblug 34, projecting laterally fromthe sleeve and moving in the longitudinal opening 28. The opening 28 isprovided with an offshoot 35, into which the thumb-piece may be thrownby a lateral swing of the' same and communicates with the opening 28,inwhich the lug moves. By swinging the thulnb-piecelaterally in its recessthe breech cover or plate is drawn in position to cover the opening 28,and by swinging the thumb-lug into the longitudinal opening 28 thebreech cover or plate is projected laterally from over the opening, andthus uncovers the carrier-block well 12. The breech-plate is preventedfromv leaving the breech-piece, or rather is somewhat snugly maintainedin position against the same, by means of a light-spring 36, arranged inthe recess 32 andunder the rear end of the perforated lug 31.

Mounted loosely in the front end ot' the sleeve 14, so that said sleevemay be partially rotated thereon,is a firing pin orbolt 37, which pinmoves longitudinally with the sleeve. The front end of the pin may beadapted for central fire; but in the 'present instance is shown adaptedfor rim-fire, and is therefore v provided with diametrically-oppositeshellexploding ribs 3,8 and at an angle to said ribs with diametricall yopposite forwardly disposed shell-extractors 39.

13 represents the carrier-block provided with a central longitudinalcartridge-receiving bore 41, above which said block is longitudinallyrecessed or bifurcated, as at 42. The bottom of the bore 41 is providedwith a longitudinal groove 43, in which ride the lowest of theeXtractors 39, so that the bolt or pin 3,7 is prevented from revolving,or any movement whatevenin a lateral direction at the time that 'thesleeve 14 and the breech-plate are partially revolved.l Below thebore 41themcarrier-block is recessed, as at 44, the opposite edges of the sidewalls of the recess being dovetailed, as at 45, and in said dovetop ofthe recess 44 and the inner faces ofv the, leaves there is located apair of light coiled springs 50, which act to normally depress theleaves, and consequently maintain the shutters in a lowered position,and so as to close the longitudinally-opposite ends of the recess 44 andthe 1n agazine-openings.

A recess 51 is formed in the side of the receiver 8, and seated in thesame is abell-crankshaped carrier-blocksupporting arm 52,which arm ispivoted, as 'at 53, at its angle, and at the outer portion of the angleis provided with a cam-face 54, against which rests the free end of adat spring 55, the tendency of which is to keep the longer branch of thebell-crank elevated. As shown clearly in Fig. 13, the bell-crank isprovided with an inwardly-projecting arm 56 at the extremity of itslongest branch and at the opposite extremity with an inwardly-disposedbearing-pin 57. The arm 56 takes into and loosely fits an opening 58,formed in the side of the carrier-block, and the bearing 57 takes into asemi-arrow-shaped groove 59, formed in the adjacentside of the slidingand revoluble sleeve 14.

The upper front end of the tail-section 19 is provided with a circularrecess 60, into which takesy the head 61 of a strap 62, of a dimensionadapting it to snugly tit the reduced open-ing or slot 28*, the largeportion 28 of which is occupied, or nearly so, by the breech-plate.l Aslight portion of the recess 28 is uncovered by the plate, and iscovered and occupied by a T-shaped head 63, formed at the front end ofthe strap 62. In this manner the tail-section is prevented from leavingthe breech-section.

The head 6l is provided with a screw-receiving opening, and through thesame is inserted a screw 6 4, which takes into the tailseotion.

Upon the extension of the tail-section on its under side there is formeda pair of depending lugs 65, through which is inserted a transversebearing-pin 66, upon which is pivotally mounted a catch 67, the, frontend of which is provided with a shoulder 68. The rear end of the catchis provided with a laterally and downwardly disposed L-shaped arm 69.The rear end of the extension 19 is provided with a slot 70, and locatedunder theextension is a stop-block 7l, connected` to a pin 72, whichpasses' through theslot 70 and is connected with a button 73, mountedfor sliding on the extension 19. The plunger-rod 23 terminates in aconical head 74, in front of which there is formed an annular shoulder75, said conical head being designed to ride over the inclined IIO IZO

cartridge.

face of the dog and the shoulder of the rod and be engaged by theshoulder of the catch.

7 0 represents the inverted- L-shaped trigger, the rear L portion ofwhich rests under the depending L-shaped portion ot' the pivoted catch,and said latter L-shaped portion is maintained normally in a depressedposition by means of a coiled spring 7 8, interposed between theextension 19 and the catch. The trigger 7G is pivoted upon itsbearing-pin 79, and lbelow is recessed, as at 80, for the reception of afriction-roller S1, mounted in the recess and upon a pin.` Aspring-detent 82 is secured to the stock and projects forward andterminates in a curved finger 83, which takes below the roller, whichroller is mounted upon a pin 84 and eccentric with relation to the pivot79 of the trigger. Then the trigger is in its normal position, thedetent 82 does not in any way intluence the same, and the piece to befired necessitates simply the pressing of the trigger to the rear and aconsequent elcvation of the upper L portion against the depending Lportion ofthe pivoted catch, which releases the plunger-rod 23, and thecollar of the same, coming in contact with the end of the sleeve,actuates the same to explode the In thus operating the trigger it isapparent that the piece is fired against the tension of the coiledspring 26, and as said spring must be of sufficient strength to throwthe bolt or plunger with suflicient force to explode the cartridge thestrength of said spring must be overcome by the pressure on the trigger,which might have a tendency to destroy or affect an accurate aiming otthe piece. By previously pushing the lower portion of the triggerforward, however, the same is accomplished against the tension of thespring-detent 82 and its embracing finger, and by reason of theeccentric location of -the roller with the pivot-pin 7 9 said trigger ismaintained in this forward position, but by a very slight pressure maybe forced back beyond a vertical line drawn through its pivot, and thedetent thus being released serves to swing the trigger with considerableforce, so that its upper L-shaped end comes in contact with thedepending L-shaped end of the latch, and thus tilts the dog or latch andreleases the plunger-rod.

At each side of the carrier-block recess the receiver is provided withnarrow slots Si, (see Fig. 7,) in each of which there is pivoted a gate85. (See Figs. 7 and l5.) The gates S5 are -reduced at their free endsto form headed lugs S6, which project beyond the side of the receiver,which at that side is provided with a recess S7.

S8 represents a shifting-lever, provided at its free end with a thumblug or knob 89,and pivoted near its center, as at 90, in the recess S7and centrally between the vertically-sliding gates. A cross-arm 91 isrigid with and arranged at a right angle to the lever 8S, and has itsopposite extremities slotted, as at 92,

to loosely engage the headed lugs of the opposite gates.

The front gate, it will be observed, covers the discharge end of thefront magazine of the piece, while the rear gate in a similar mannercovers the front or exit end of the bore 17 of the breech-section, sothat by the construction described it will be apparent that when theexit of the front magazine is closed the exit to the bore 17 is open,and vice versa. It will also be observed that when the lever is arrangedparallel with the slots in which the gates are located the magazine andthe bore 17 are both closede The upper wall of the recess 87 issernieircular and concentric with the pivot 90 of the lever S8, and saidrecess is provided with opposite stops 93 to limit the throw of thelever, and between the said stops the bottom of the recess is providedwith three indentations 9a, arranged in a concentric circle, there beingan indentation located at the ends of the movements of the lever and oneat the center. Thus it will be seen that the thumb-lug projecting abovethe arm of the stock may be operated by the person handling the piece,and it will be evident to said person when the lever is in the desiredposition.

Located in the grip portion 95 of the stock is a tube 96, one end ofwhich communicates with the rear end of the bore or chamber 17, and theopposite end of which terminates at the front end of a chamber or recess97, located in the butt ot the stock. Vithin the recess 97 there isarranged a series of magazine-tubes, the series comprising in thisinstance three tubes 98 99 100, said tubes being arranged parallel witheach other and joined, and at their rear ends provided with a centralrearwardly-disposed perforated lug 101, pivoted in the end of the recess97 by a bolt 102. In a small recess 103 in front of the recess 97 thereis pivoted a bell-crank 10i, the rear end ot the bell-crank beingconnected to the magazines in the recess 97 by a pivoted link 105.Covering the recess 103 is .a plate 106, having a longitudinal slot 107,the opposite edges of which are provided with three indentations 10S.Mounted in the slot and adapted to slide'within the same is a trigger109, the upper end of which within the recess 103 is bifureated, as at110, and receives the disengaged end of the bell-crank. The trigger isprovided with a pair of opposite lugs 111, which are adapt-ed to takeinto either pair of the indentations. lf the trigger be in the frontpair of indentations, it is apparent that the upper magazine 98 will bethrown into alignment with the tube 99, and if it be in the rear pair ofindentations the magazine 100 is thrown into alignment with the tube 96,and likewise it' it be in the central pair of indentations the central ymagazine will be thrown into alignment and communication with the tube96. lt will thus be apparent' that the magazines for the purpose ofrefilling TOO ITO

or discharging may be successively brought into alignment andcommunication with the tube 96, leading to the bore 17.

The fore-arm of the stock opposite the carrier-block well 12 is providedwith an opening 113, and pivoted'in one end of the same is a hingedcover or plate 114, a spring 115, located in rear of the opening 113,bearing upon the pivoted end of the plate and serving by reason of theangular faces of the rear end of the plate to maintain said plate eitherin a closed or open position.

The tube 14 is provided with a port 116, (see Fig. 10,) which when thebreech-plate is in a closed position is swung into register with a port117, formed in the side of the receiver. From the port 117 there leadbranch tubes '118 and 119, the tube 118 passing through the stock towardthe front end and lying between the barrel l and the front magazine 6and at the upper end of the magazine communicating therewith. The rearbranch i passes through the stock to the rear end of the recess 97,whereit is bent laterally and in close Contact with the rear ends of thethree magazines 98 99 100. The rear ends of each of the three magazinesabove mentioned l are provided with induction air-ports 120,

and the lateral branch 121 of the tube or branch 119 is likewiseprovided with three ports 122. (See Figs. 6 and 1l.) To load themagazines, the piece is inverted and the plate 114 opened. The lever 88is swung against the rear stop 93, which raises the gate 85, coveringthe discharge end of the front magazine. The cartridges are nowintroduced into the rear end of the magazine through the carrier-block,the sliding shutters 46 readiljT yielding to the pressure caused by theintroduction of the cartridges and closing as soon as the introductionis completed. In this manner the front magazine is completely filledwith cartridges, after which the lever 88 is thrown to the rearposition, so as to uncover the front end of the bore or chamber 17, andcartridges are now forced rear end irst into said chamber. The trigger109 is manipulated so as to bring the magazines 98 99 100 successivelyinto register with the tube 96, so that each magazine becomes filled,and also the tube 96 and the chamber 17.

In the front magazine and behind the line iof cartridges there islocated a follower 123,

upon the rear end of which is located a stud 124. In rear of the plateis a disk 125, upon the front base 'ot which is a stud 126. Between thefollower 123 and the disk 125 and coiled about the studs 124 and 126 isacoiled cushioning-spring 127. f

To operate the front magazine the lever 88 is swung so as to open thesame. The thumblug 34 is swung laterally to remove the plate 30 from thebreech-opening. This lateral movement ot the thumb-lug and plate swingsthe sleeve 14, so that the lug 57 of the bellcrank for raising thecarrier-block takes into the lower elongated portion of thevrecess 59.The thumb-lug is now drawn to the rear, and with it the sleeve andplate. By reason of the elongated portion of the recess 59 the sleeve 14can move a certain distance to the rear before the end of the recessabuts against the lug 57, at which time the advanced end of thefiringpin will be withdrawn from over the carrier-block well and fromthe bore 41 of the hoist-block. The movement of the sleeve 14 now beginsto affect the bell-crank arm, and the latter is tilted upon its pivot soas to elevate the carrier-block. This elevation of the hoist-blockraises a cartridge and presents the same to the breech of the barrel. Inthis rearward movementot the tube the plunger-rod 23 is moved againstthe tension of the coiled spring 26, and the conical head 74 rides overthe inclined face of the ypivoted catch until the shoulder of the catchengages the shoulder ot` the head 74. The piece is now cocked, and torender the same ready for tiring it simply remains to move the sleeve-14and breech-plate to the front, the tiring-pin entering the bore 41 ofthe carrier-block, and after such movement the thumb-lug 34 is swunglaterally and carries with it thebreech-plate 30,which covers thebreech-opening. The piece is now in condition for tiring and maybedischarged in the ordinary way or by setting the trigger so as torequire a very light pull. After firing, the same operation takes placeas before described, the hooks 39 of the tiring-pin serving to lightlyengage the shell ot' the cartridge and withdraw the same from the breechand from the bore 41 of the carrier-block, by which time thecarrier-block has descended into line with the magazine to receive afresh cartridge. During its descending movement the empty shell issupported loosely by the hooks 39, so that the slightest touch willdisengage the same and eject it from the carrier-block well or chamber.When the plunger-rod 23 is withdrawn from the tube 14, the tube becomesVfilled with air, and when suddenly released by the trigger in the act ofdischarging the piece the air is suddenly compressed by the pistonheadupon the plunger-rod and, finding only the port 116, makes its escapetlirough the same, and is carried by the branch pipe or tube 118 to thefront end of the magazine-chamber and behind the springfollowing-platein rear of the line of cartridges. To cushion this suddeninjection of compressed air,I provide the spring-follower described, andthus I obviate the necessity of providing the magazine-chambers withcoiled feedsprings, which not only occupy valuable space, but are liableto'lose their resiliency and refuse to properly feed IOO IIS

the cartridges to the carrier-block. From this p eration of successivelyemptying the three rear magazines, beginning with the upper magazine 98of the series. The lever 109 is moved to the front end of the slot 107,so that its lugs will lightly interlock with the indentations located atthat point. This movement of the lever tilts the bell-crank 104,

which, through the medium of the link 105,

swings the series of magazinechambers upon their pivot 102, so as tobring the upper chainber 98 intoline with the cartridge-tube 96. lhepivot of the magazine-chambers being in rear of the ends of the same, itwill be apparent that the ends of the magazines will move upon a circleconcentric with its pivot. The ports 122 in the branch 121 of theairpipe 119 are so arranged with relation to the ports 120 of the rearmagazine that when one of theports of the branch is in line or registerswith any one of the ports of the magazines the remaining ports of thebranch and the magazines are out of register, so in the prese1it instanee the port of the upper magazine 9S is in register with the upperport of the branch when the front end of said magazine 1s in line withthe tube 90. It will of course be understood that the lever 8S has beenswung to open the rear gate S4 and remove the saine from over the frontend of the chamber 17. The operation of loading, cooking, anddischarging the piece is exactly the same as before described, with theexception that the air is injected in rear of the line of cartridgeslocated in that magazine being emptied, and the cartridges are thus fedfrom the magazine to the cartridge-tube 90 into the chamber 17, to besuccessively elevated by the carriersblock and forced into the breech ofthe barrel. After the piece has been discharged and the iiring-pinretracted with the cartridge-shell lightly support-ed thereby, thesubsequent upward movement of the carrier- -block striking' the shellserves to eject the same from the carrier-block well.

The piece is designed to contain one hundred and fifty cartridges of theshort pattern, or ninety-seven of the i long pattern. The front magazineis designed to carry sixty of the short cart-ridges, the remainingquantity being contained in the three magazines 98 99 100 and in thetube 96 and chamber 17.

The upper magazines 9S and 99 are proyided With fillets 128, the lowermagazine being plain, and in each of the magazines there is mounted aspring cushion-follower similar to the one mounted in the frontmagazine, which lat-ter magazine is also provided with a fillet 129 atits discharge end. The fillets prevent the springfollower from leavingthe magazine-chambers. The lower magazine 100 being minus a fillet,however, and being the last one discharged, it is apparent that thefollower therein will be free to pass into the chamber 96 and 17 and upto the breechblock recess. This lower magazine having been the last redwill naturally be in the potition to be the rst of the three magazinesso be recharged, and thus the spring-follower belonging to that magazinewill be forced back into its proper position previous to the time thatthe two upper magazines are successively brought into the rechargingposition.

Having thus described my invention, what I claim is 1. In amagazinegun,the combinatiomwitli a stock having a recessed butt and a tube leadingIfrom the recess, and a breech-section mounted upon the fore-arm of thestock and provided with a carrier-block moving across the tube, of aseries of magazines pivoted in the recess of the butt and adapted to beswung so as to bring either into line with the tube of the stock, means,substantially as specilied, for raising and lowering the breechblock,and means for feeding the cartridges from the magazines, substantiallyas specilied.

2. In a magazine-gun, a recessed stock, in combination with a series ofmagazine-tubes pivoted at their rear ends in the recess, and means forswinging the series of tubes upon their pivot, so as to bring ,eitherone of the same into line with a cartridge-tube located in the grip ofthe stock, substantially as speeilied.

3. 'In a magazine-grim, a stock provided with a recess and in the gripof the same with a cartridge-passage, in combination with a series ofmagazine-tubes arranged parallel with each other and pivoted at theirends in the rear end of the recess, a bell-crank lever arranged in frontof and below the magazines, a link pivotally connecting one branch ofthe same with the magazines, and a pivoted trigger loosely connected tothe opposite end of the bell-crank and adapted t-o operate the same uponits pivot so as to raise and lower the magazines, substantially asspeciiied. Y Y

4f. In a magazine-gun, the combination, With the recessed butt of thestock provided With a cartridge-passage communicating with the recessand formed in the grip of the stock, of a series of parallelmagazine-tubes pivoted at their rear ends in the rear end of the recessof the stock, a bell-crank lever pivo'ted in a recess in front of themagazine-recess, and a link loosely connecting one branch of the leverwith the series of magazines, a plate longitudinally slotted, mountedover the bellcrank-receiving recess, and provided at its opposite edgeswith indentations, and a trigger having opposite lugs adapted to takeinto the indentations, and having its upper end bifurcated to receivethe remaining branch of the bell-crank, substantially as specified.

5. In a magazine-gun, the combination,with a stock having a recess, of aseries of magazine-tubes pivotally mounted in the recess and provided attheir rear ends with ports, means for raising and lowering the tubes, anairtube arranged adjacent to the magazines and having ports so locatedthat when one registers with a port of a magazine the others are IOO IIO

out'of register and closed, and means, substantially as specified, forforcing ail-from the tube into the magazines, substantially asspecified.

(i. In amagazine-gun, the combination, with a stock having a recess anda magazine located therein, of an air-tube leading to the rear end of`the magazine, and means for forcing air into the tube, substantially asspecified.

7. In a magazine-gun, the combination, with a stock provided with arecess, of amagazine tube located therein, a spring-follower mounted inthe tube, an air-pipe communicating with the tube, and means for forcingair into the pipe and tubein rear of the follower, substantially asspecified.

8. In a magazine-gun, the combination, with a magazine, of an air-tubeleading to the rear end of' the same, and means, substantially asdescribed, for forcing airinto the tube at each discharge of thel piece,substantially as specified.

9. In a magazine-gun, the combinatiomwith a magazine, of a tube havingan air-port, a pipe-leading from the port to the rear end of themagazine, a headed plunger mounted in thetube, means for withdrawing theplunger and locking the same and for releasing the plunger, and a springfor throwing the plunger after its release, substantially as specified.

l0. In a magazine-gun, the combination, with amagazine, of a tube havingan opening, an air-pipe leading from the opening in the tube tothe rearend of the magazine, a plun- Vger having a head mounted in the tube andprovided at its rear end with a shoulder and between its ends with acoiled spring, means for withdrawing the plunger from the tube, apivoted catch spring-pressed for engagement with the shoulder, andatrigger adapted V.to be swung into contact with the rear end of thecatch for ldepressing the front end of the catch out of engagement withthe shoulder of the plunger, substantially as specified.

11. yIn a magazine-gun, the combina-tion, withia magazine, of a sleevehaving an opening, a plunger having a pistonmounted for movement in thesleeve andl having a coiled spring for forcing the same into the SleeveAand terminating at its'rear end in a shoulder and at its front end in afiring-pin, a pivoted latch vadapted at its front end to engage theshoulder and having a depending L-shaped,

ing vand locking the plunger and forreleasing vthe same, substantiallyas specified.

1 3.In a magazine-gun, the combination,

tion s, and at the opposite side of its pivot with' a series of rearmagazines located in a recess in the stock of the gun and means forthrowing either one of said series into line with a cartridge-tubelocated in front of the recess and in the stock, and afront magazinelocated under the barrel, of a tube provided with an orifice locatedbetween the front and rear magazines, a plunger having a piston mountedin 'the tube, a coiled spring for throwing the'plunger, a pivoted latchfor engaging the rear end of the plunger and terminating at the oppositeside of the pivot in an L-shaped arm, an invertedrL-shaped triggerdepressed by the arm, opposite airpipes branching from the orifice ofthe tube, one of the air-tubes leading to the rear end of the frontmagazine and the opposite tube to the rear ends of the rear magazines,and means for throwing either one of said magazines into communicationwith said air-tube, substantially as specified.

14. Ina magaziuegun, a magazine, in combination with a follower formedof' opposite disks having an interposed cushioning-sprin g, an air-tubecommunicating with the rear end of the magazine, and means for.injecting compressed air through the tube into the magazine in rear ofthe follower, substantially as specied.

l5. ln a magazine-gun, frontand rear magazines terminating `in `rear ofthe breech of the barrel, in combination with pivoted gates located overthe ends of the magazine, and means, substantially as described, foropening one gate and simultaneously closing .the opposite gate,substantially as specified;

16. In a magazinegun, the combination, with a receiver'having acarrier-block well, a [o5 carrier-block mounted therein, and front and vrear magazines communicating with the recess at oppositev sides, ofslotsarranged in the walls of the recess opposite the openings of' themagazines, gates pivoted over the openings and for movement in theslots, and a lever pivoted between the slots and having a lateral arm.loosely engaging the ends of the gates, substantially as specified. i

.17. In a magazine-gun, the combination, with a receiver having acarrier-block well, front and rear magazine-passages communicating withtheopening and provided with opposite slots, and a recess formed in oneside of the receiver and provided with stops .and indentations, ofopposite gates mounted in the slots, a lever pivoted Vintermediate theslots within the recess and provided with a thumblug and a detent fortaking in the indenta- IOO IIO

mounted in the recesses and adapted to normally close the passages andto yield for the introduction otthe cartridge into the passages,substantially as specified.

I9. In a magazine-"gun, the combination-` with a receiver having acarrier-block well the wall of which is slotted, of a carrier-blockmounted for vertical movement in the opening, a bell-crank pivoted inrear of the opening and having one of its terminals loosely engaging theblock and passing through the slot in the wall of the opening, and meansfor tilting the bell-crank, substantially as specified.

20. In a magazine-gun, the combination, with a receiver having acarrier-block well, one wall ot' which is slotted, of a carrier-blockmounted in the opening, a bell-crank pivoted in rear of the opening andhaving one of its terminals inwardly bent to loosely engage thehoist-block, and a sliding tube mounted for movement above and in. rearof the opening and loosely connected with the opposite branch of thebell-crank, substantially as specified.

2l. In a magazine-gun, the combination, with a receiver having acarrier-block well an opening above the same, and a bore below theopening and in rear of the wall, of a bell-crank pivoted to the receiverin rear of the well, one arm of the bell-crank passed through a slot inthe wall of and into the well, the carrier-block mounted in the well andengaged by the said arm, a reciprocating sleeve mounted in the bore andhaving at one side a recess the base of which is elongated, and in whichterminates the opposite arm of the bell-crank, a thumb-lug mounted uponthe sleeve, and a plate hinged to the lug and mounted in the opening ofthe receiver and adapted for lateral movement into and out of the same,substantially as specified.

22. In a magazine-gun, the combination, with a receiver having abreech-opening and in rear of' the same provided with a way, of asliding tube mounted in the way'and provided with a thumb-lug having anopening, a breech-plate adapted to close the opening in the breech andhaving a perforated lug pivoted in the opening of the thumb-lug, and aspring arranged under the lug of the plate in rear of its pivot,substantially as specified.

23. In a magazine-gun, the combination, with a receiver having alongitudinal bore, of a sliding tube mounted in the bore and provided atone end with a firing-piu and in rear of the same with an operating-lugprojecting upwardly through a slot in the receiver, a plunger providedwith a piston-head mounted in the tube, a spring for throwing the same,said plunger terminating at its rear end in a shoulder, a spring-latchfor engaging the shoulder, and a trigger for operating the latch torelease the plunger, substantially as specified.

24. In a magazine-gun, the combination, with a magazine, a receiverhaving a bore,

and a reciprocating' tube mounted in the bore and provided with anoperating-lug projecting through a slot in the receiver, of aplunger-rod having a piston, and inrear ot" the saine a fixed collar forstriking the end of the tube, a spring coiled upon the plunger forthrowing the same, means for locking and releasing the plunger, anair-pipe leading from the reciprocating tube in front of the piston ofthe plunger and communicating with the rear end of the magazine, and afiring-pin mounted at the front end of the reciprocating sleeve,substantially as specified.

25. In a magazine-gun, the combination, with a receiver having anopening, of a bore arranged longitudinally in the receiver,magazine-passages terminating at each side of and near the bottom of theopening, a breech-arm, a carrier-block mounted in the opening, a hollowsleeve mounted for sliding in the bore and provided with a loosefiring-pin adapted to enter an opening in the block, and said sleevebeing provided with a recess elongated at its lower end, a bell-crankpivoted in rear of the hoisting-block and having one end engaging saidblock and the opposite end taking in the recess of the sleeve, a fiatspring bearing against the shoulder formed within t-he bell-crank infront ot' its pivot, so as to normally elevate the same, a plungermounted in the sleeve and provided at its front end with a piston and inrear of the same with a sleeve-striking collar, a spring coiled aboutthe plunger, a pivoted spring-pressed latch arranged in rear of theplunger and adapted to engage a shoulder formed upon the same, a triggerfor tilting the latch to release the plunger, and an air-tube leadingfrom the sliding sleeve to the rear of the magazine, substantially asspecified.

26. In a magazine-gun, a receiver having a carrier-block Well and alongitudinal way in rear of and communicating with the opening, incombination with a carrier-block having a ringpin-receiving opening, areciprocating firingpin, and a hollow sleeve revolubly mounted thereonand provided with a recess terminating in an elongated groove,l and abell crank pivoted in rear of the carrier-block, connected thereto atone branch and havin g its opposite branch terminating in the groove ofthe sleeve, substantially as specified.

27. In a magazine-gun, the combination, with the stock having a recessin its butt, a breech-section, and barrel secured to the stock, of amagazine located under the barrel, a series of magazines located in arecess in the stock and adapted to be thrown into line with acartridge-passage formed in the breech-section, a sleeve mounted abovethe cartridgepassage, a piston and plunger mounted in the sleeve, branchpipes leading from the sleeve to the front and rear magazines, and meansfor withdrawing the plunger, locking and releasing the same,substantially as specified.

28. In a magazine-gun, the combination, with a sleeve having afiring-pin, of a plunger IOO mounted in the sleeve and having a collarfor abutting against the rear end of the same and terminating at itsrear end in a'shoulde'r, a pivoted latch for engaging lthe shoulder, anda looking-block mounted in rear of the l'ateh and having a pin mountedin a slot above the latch and formed in the receiver, and a push buttonor slide mounted on the upper end of the, pin, suhsiantially asspecified.

29. In a magazine-gun, lthe combination, with a receiver having anopening` `and opposite cartridgev passagesleadi ng from the magazines tothe opening, of a carrier-block mounted in the opening' and having 'itslower end recessed and provided at opposite sides with dovetailed Ways`sliding shutters mounted in the Ways, a bearing-pin mounted in therecess, leaves pivoted on the bearingpin and having` their free endsengaging openings in tially revolve upon the iiring-pin and to withdrawand insert the same,- substantially as specified.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in presence of two Witnesses.

ROBERT DINSMORE.

Witnesses:

J. H. SIGGERS, R. W. DAYTON.

